Machine for reducing wood and other fibrous material to a



2 Sheets-Sheet 1:. G. H. POND MACHINE FOR REDUCING W001) AND OTHER FIBROUS MATERIALS (No Model.)

TO A BULB zmemedim 7, 1885.

2 heeis -shset 2. r PQ'NB. MACHINE FOR REDUCING WOOD AND (No Model.)

FIBEU'US ULAQB:

TO A PULP mix 511110;?

ill.

liiUi U- LL m FEE? F y W line i no Strun GOLDSBURY lliklli'llibl POND, OF GLENS FALLS, 3' UV YORK.

MACHlNE FOR REDUCING WOOD AND OTHER FIBROUS MATERIAL TO A l'ULl.

SPECIFICATION famine part of Letters Patent No. 321,451, dated July '7. 1885.

Application tiled Angustifi, 1884.

I'o czZZ whom it may .SOII/GEFIL:

Be it; known that I, GOLDSBURY I'IARDEN lo.\'1 ,a citizen of the United States, residing at Glens FilllS, New York, have invented eertziin new and useful Improvements in Making .luip from Wood or other Fibrous Material,

dveromsing the expense of ninnnlhetnro and the amount oi power expended, and increasing; its strength :1 nd fiber, thereby inereasi ng; its value; and i do hereby declare than the following is a. i'nll, clear, and exaet description oi the invention, which will enable others skilled in the nrl; to which it appertains to make and nsoihe some.

Heretolore wood pulp has been made prim ripnlly by grinding-n.- slow and expensive proeexsund also by the elmnionl process, which is still more expensive.

The object o! my invention is to nmlce a beta tor iilll'l' than has ever been made by grinding, and (lQllliliSl ihi'eexpenseot the some, by gently rubbing and grinding it, in an ineloseol vessel, and a. ninehine whose parts are ennily adjusted,

with its hearings i'nitside the inclosed part; oi

lhe cylinder within control of the operator.

in [he ziceonipnnyingdrawings, Figuri-li'e y rmenis n ventral vertical section of the nin.- ehine. 2 is a plan View. Fig. 31's :1 plan view oi the interior ol' the cylinder. Figs. 4, 7), o, and T are detail Vl WS m the upper houring oi the main Shall.

To i-nzryniy invention into ei'i'eei l eonslruot it e ylindor, A, -with cover i], all titted steamiig'ht. into this cylinder is placed a central s hilt, X, on which is liistened the rubbing or grinding runner i; ii with shoes U. The hottom of the cylinder is lilierf. *ith dies 1) ioreoeiw: the wear oi the shoes, and on these limes the material lfililliil i-nhlvx-ilorg'ronndtonny i' uii'oii IlZlClJPSS. 'lheslmi'lz is moved lip pub ley ll. and bevel-genie: ir'ii. The shaft, with all the weight oi" the runnersnnilother ports; thistened thereto, resis and turns upon an oven hanging hearing consisting of the runner 1, fastened illllil j" to the shell; and tnrmng with it, the whole renting and turning upon the bronze disk d nnd the bed-liloeku, these again renting upon the solid bridge i'o'ii'ned by the wronghhiron.bars b b. The bars are bolted through slotted holes: .ss iotho stands K K. Under ihe heilhlorh, rind inelosinn the whole (No mmlnl i stop, is a copper pan, 0, "which holds the in- F in the bottom is used for 21 guide to steady and keep in position the shaft and its hangings. The amount oi grinding is regulated by the screws V V, whieh raise or lower the shaft and separate the grindirig-surfaces, as required.

In using the niueiiine l. first lillizhe cylinder nearly full of \Vttil'ilf and fine pieces of wood or other fibrous inai1erinl,(in line 1)l(CG$,) and then fasten down ntoanrt ighl; the lilltll-llOiG eover'Y, and have the revolutions of the shaft and runner sullicient to work the mass in an hour. Vihilo it is being worked I letin the steam through :1. pipe in the bottom. The higher the pressure the hotter will he the re.- snits, giving 21 length of liberneeoriling lo the pressure of stemnnsed. At eightynonnds it produees i'zz-ir l(" 1illl5 ntn. hundred and lift-y it is illllCll hotter, and iii; two hundred pounds }I"(*SSL1!'U the pulp in very line, giving 211011;: soft fiber with inn; very little grinding. ii'hen the machine is set in motion, tlienniss of fine nieces oi wood, with water, circulates rapidly by passing through the iiipenings'i lot the run nor Ll B, then bung forced outward and up- Ward and around. the inner side of the oyliir der, when it comes in cont-not with the stationary wings \V W, extending from the cyli nder to the shaft, and in conducted to the central openings, I I, in the runner, whence it Start-ed,

and is again lightly rubbed and thrown out. and so on, until thewhole nmss becomes a per- Having described-fly intent ion, what I claim, and desire to secure by Letters Patent, 1s

1. In an apparatus for reducing wood to a pulp, an air-tight vessel having arranged there in'the adjustable rubbers whose shaft is mounted and suspended from a bearing arranged at its upper end.

2. In an apparatus for reducing wood to a pulp, an airtight vessel having arranged there in the adjustable rubbers whose shaft is mounted and suspended from a bearing arranged near its upper end, the said bearing being carried upon the adjustable cross-liar 11, substantially as described. a

3. In an apparatus for reducing wood to a pulp, the air-tight vessel having the shaft carrying the grinders, in combination with the bearing by which the said shaft is supported, the same consisting ofthe-if'iumger P,keyed to the shaft, and the adjustable bed-block a, substantially as described.

4. In an apparatus for reducing Wood to a pulp, the. air-tight vessel having the shaft earrying the, grinders. in combination with the 2 5 runner 1*,the circulating-Wings,the disk d, having the grooves i, the bed-block a, and the inelosing oil-pan O, scribed.

5. 'In an apparatus for reducing wood to a 0% pulp, the airtight vessel A, in combination with the shaft carrying the grinders, the circulating-wings of the stands K K, the bridge bars I) b, the screws V V, the bed-block a, and the head metal disk (Z with the runner 1, and 35' the oil-pan 0, substantially as described.

GOLDSBUR-Y HARDEN POND.

Witnesses:

H. M. POND, G. H. GTZAHAM.

all substantialiy as de- 

